Terminal based on convergent services

A terminal based on convergent services is provided with a terminal software support module and is optionally provided with three software support modules such as an internet protocol television (IPTV), a cable television (CABLETV) and a smart television (SMARTTV), wherein software support modules (that is, service modules) are implemented through dynamic loading and terminals which meet service requirements of the IPTV, the CABLETV and/or the SMARTTV are implemented; software modules dynamically load corresponding requirements from a universal serial bus flash disk by the method of combination of software and hardware; all the content of a service tier of convergent services can be implemented through software support modules, and software support modules are compatible with the hardware in a standard mode; an initial system is independent of any one of related content suppliers providing three-network convergent services; when a user needs one or some services, a user key is detected, and processing is conducted as per a default script if no key exists; and if a key command exists and related parameters are read out from the universal serial bus (USB) flash disk, the universal serial bus flash disk loading processing is conducted, one of the IPTV, the CABLETV and/or the SMARTTV is selected to be stored in the terminal, and after system loading initialization operation is finished, data streams of existing multiple channels are decoded.